2.Решите уравнение. (6.97Х-13,2Х)*(- 1 11/89)=-5 2/9 - 3 1/3 ( "/" ДРОБНАЯ черта!)

Question

2.Решите уравнение.

(6.97Х-13,2Х)*(- 1 11/89)=-5 2/9 - 3 1/3

( "/" ДРОБНАЯ черта!)

Answer 1

(6,97х-13,2х)*(- 1 11/89)=-5 2/9 - 3 1/3

-6,23х*(-1 11/89)=-77/9

7х=-77/9

х=-1 2/9

Answer 2

1 11\89 = 100\89

..............................

- 697\89Х + 1320\89 = - 47\9 - 10\3

- 7 Х = - 77\9

Х = + 77\9 : 7 = 11\9 = 1 2\9